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Down Recovery

2-3.

Recovery processing

2-3-1.

Master/backup master down detection

←Cut off Master/BM icon

←System error icon

2-3-2.

When both master and backup master go down

2-4.

Master failure during X/Z collection/consolidation or terminal data transfer

2-5.

Satellite terminal down

I-14

With the QT-6600 system, the processing being performed can be continued by a backup

master even when a master goes down. However, at the end of the daily operations, the

master which has been down should be restored so that it can operate normally on the next

day.

1) After daily operations, check the "Cut off Master/BM" icon.

2) If the icon is lit on any terminal, the system has been downed in the day.

3) Turn off / on the master and backup master (not by the <Disp on/off> key but by the main

power switch in the power switch cover).

4) After this operation, the "System error" icon is lit on the master (or backup master) or

both master/backup master.

5) In case of the icon of one terminal is lit, disconnect this terminal from the inline and

repair it. If the icon of both terminal are lit, both master have been downed. This case,

jump to the next section.

6) Issue open check reset report on the alive master or backup master terminal.

7) Connect the restored master terminal with the inline, initialize it and download the

terminal program from the other master.

8) Perform the "System Re-configuration" at the restored master terminal.

1) Restore both masters immediately, load the program file to them.

2) Perform the "System Re-configuration" at the master terminal.

With the master goes down during X/Z collection / consolidation or transfer of terminal

program file, it is necessary to take the following procedure:

1) When the master goes down during Z collection / consolidation, the satellite is not

released from locked condition.

2) In this case, press the <ESC> key twice at that satellite to release the locked condition.

3) After step 2), cut off the downed master from the system connection table and perform

Z collection / consolidation from other terminal.

This command should be issued by the good (not downed) terminal.

When the satellite terminal goes down during check tracking registration, the check

number cannot be used for other terminal.

In this case, performing the "Busy Reset" command in the manager mode releases this flag.